Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 24, Issue 5, Pages 1046-1052Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.24.001046
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The mechanism of energy transfer from Yb3+ to Er3+ ions has been studied in bismuth borate glasses with a serial Yb3+ concentration. The analysis of the donor fluorescence decay with a low concentration has been used to determine the multipole character of the energy transfer. The energy-transfer microparameters were determined and used to calculate the migration-assisted energy-transfer rates on the basis of the hopping model, which are in agreement with those obtained by fitting the fluorescence decay curves. An efficient energy transfer from Yb3+ : F-2(5/2) to Er3+ : I-4(11/2) in the bismuth borate glasses has been demonstrated. (C) 2007 Optical Society of America.
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